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6.5

Backup very SLOW in Linux using CommVault

Asked by atvrocks in CommVault, Linux Administration, Linux Networking

Tags: CommVault, Galaxy, CentOS, Linux

I have a Dell 2850 running CentOS 3.9 (a flavor or RH Linux). I am running a SCSI PowerVault 124T - LTO-3 backup system on a different Dell Server
All the connections are via a Gb switch and the eth. cards a re set to 1000/Full Duplex
So from the Linux Server via the switch to the backup server via SCSI to the tape drive.
I am backing up 6 Servers - all the Windows servers perform exceptionally (very fast) - now when I'm going to Linux - It takes forever.
Monitoring the switch port via Solarwinds monitoring, shows over 150mb/s in the first 15 min of the backup job - to drop to a sustained rate of 20-25 mb/s for the next 18 hours or so.
In the other side - this makes no sense because what I back up is about 250GB worth of data.

From the backup server to the Linux box - I can copy files at a rate of 10 Mb/s.
Attached is a graph of the entire backup process seen at the switch port
Appreciate any help in this matter.

Thank you.
Attachments:
 
Bandwidth.png (8 KB) (File Type Details) 
Bandwidth
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[+][-]04/28/09 01:28 AM, ID: 24248605Accepted Solution

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About this solution

Zones: CommVault, Linux Administration, Linux Networking
Tags: CommVault, Galaxy, CentOS, Linux
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Solution Provided By: squify
Participating Experts: 3
Solution Grade: B
 
[+][-]04/26/09 11:18 PM, ID: 24239212Expert Comment

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